diff --git a/tests/baz/1.0/default/Baz.cpp b/tests/baz/1.0/default/Baz.cpp
index 5ccd87b..e118122 100644
--- a/tests/baz/1.0/default/Baz.cpp
+++ b/tests/baz/1.0/default/Baz.cpp
@@ -394,6 +394,12 @@
     _hidl_cb(result);
     return Void();
 }
+
+Return<void> Baz::haveSomeStructWithInterface(const StructWithInterface& swi,
+                                              haveSomeStructWithInterface_cb _hidl_cb) {
+    _hidl_cb(swi);
+    return Void();
+}
 // Methods from ::android::hidl::base::V1_0::IBase follow.
 
 IBaz* HIDL_FETCH_IBaz(const char* /* name */) {
diff --git a/tests/baz/1.0/default/Baz.h b/tests/baz/1.0/default/Baz.h
index 4443587..c264f47 100644
--- a/tests/baz/1.0/default/Baz.h
+++ b/tests/baz/1.0/default/Baz.h
@@ -91,6 +91,8 @@
     Return<uint32_t> size(uint32_t size) override;
     Return<void> getNestedStructs(getNestedStructs_cb _hidl_cb) override;
 
+    Return<void> haveSomeStructWithInterface(const StructWithInterface& swi,
+                                             haveSomeStructWithInterface_cb _hidl_cb) override;
     // Methods from ::android::hidl::base::V1_0::IBase follow.
  private:
     sp<IBazCallback> mStoredCallback;